Abstract: A system and method of the present disclosure provides a block, or region, based error diffusion process for reducing artifacts in images. The system and method allows for the generation and the control of the spatial frequency of a masking signal, e.g., noise, in a way that it can be easily passed through the compression process. The system and method provides for selecting a block size of pixels of the image, adding a masking signal to the image, determining a quantization error for at least one block in the image, and distributing the quantization error to neighboring blocks in the image to mask artifacts in the image. An output image is then encoded with a compression function.

Abstract: The present invention is a device that automatically removes wrinkles from clothing, either at home or while traveling. It requires a minimum of effort to assemble, use or dismantle and can be packed for travel in a small, lightweight case. Clothing is placed in a modified "wardrobe" type bag that contains a secured, but removable, hand-held steamer, with an automatic shut-off valve at the bottom. The bag is secured to the top of a doorway or some other spot, the clothes are hung inside the bag at the top, and the door is zippered shut. The switch is then turned on and left on. When the cycle is complete, an automatic shut-off switch turns the steamer and an indicator light off. The clothes may then be removed for drying. When the device is no longer needed to be in use, or in preparation for travel, it can be collapsed and folded into a space that is about 1/10 of a cubic foot.